The first primary was held on March 14, 1916. Several historic objects were on display, including antique ballot boxes and the desk owned by the author of the law that created the 1916 primary.

George Cleveland, who is a descendant of Grover Cleveland -- the first president elected through the New Hampshire Primary -- was also in attendance.

“It's a really important thing to the state of New Hampshire and anyone who studies history,” said Cleveland. “And kids who come to the statehouse are going to be able to learn about this and why the first in the nation primary is such a historically important thing.”